John Sadler, CLINICAL CHEMIST
NPI 1043808264 · Clinical Pathology/Laboratory Medicine Physician · Houston, TX
John Sadler, CLINICAL CHEMIST is a Clinical Pathology/Laboratory Medicine Physician provider in Houston, TX (NPI 1043808264).
Provider details
- NPI number
- 1043808264
- Entity type
- Individual
- Primary specialty
- Clinical Pathology/Laboratory Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- CLINICAL CHEMIST
- Sex
- Male
- Sole proprietor
- Yes
- License
- 45D2154841 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-01-04
- Last updated
- 2021-01-04
- Certified
- 2021-01-04
Frequently asked questions
- What is John Sadler's NPI number?
- John Sadler's National Provider Identifier (NPI) is 1043808264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Sadler's specialty?
- John Sadler is listed in the NPPES registry with a primary specialty of Clinical Pathology/Laboratory Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Sadler located?
- John Sadler's practice location on file with NPPES is 4106 Tidewater Dr, Houston, TX 77045-4338.
- What is John Sadler's phone number?
- The practice phone number listed in the NPPES registry for John Sadler is (713) 517-1875.
- Is John Sadler's NPI active?
- Yes — John Sadler's NPI (1043808264) is active in the NPPES registry as of the last update on 2021-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.